Parity magic programming challenges

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Number	Name	Challenge Level
1.1	Count the black squares (one colour per input) Show more details	Beginner
	Learning outcomes Students will be able to: Explain the difference between the set statement and the change statement when used to update the value of a variable. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution
1.2	Count the black squares (one line of input) Show more details	Growing experience
	Learning outcomes Students will be able to: Describe why a variable should be set to the correct type of initial value. Computer Science: Programming Explain the difference between the set statement and the change statement when used to update the value of a variable. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution
2.1	Check for odd/even numbers using modulo operation Show more details	Growing experience
	Learning outcomes Students will be able to: Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution
2.2	Check for odd/even numbers using repeated subtraction Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution
3.1	Detect parity error in a row Show more details	Growing experience
	Learning outcomes Students will be able to: Explain the difference between an if-else statement and an if statement and how you have used them in your program. Computer Science: Programming Explain what the modulo operator does in your program. Computer Science: Programming Explain why choosing a good name for a variable is important. Computer Science: Programming Challenge Solutions Show Scratch solution
4.1	Detect parity error in 6 rows (after each row is entered) Show more details	Growing experience
	Learning outcomes Students will be able to: Explain how to concatenate (join) strings of characters together. Computer Science: Programming Explain the difference between an if-else statement and an if statement and how you have used them in your program. Computer Science: Programming Explain what the modulo operator does in your program. Computer Science: Programming Explain why choosing a good name for a variable is important. Computer Science: Programming Challenge Solutions Show Scratch solution
4.2	Detect parity error in any number of rows (after each row is entered) Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain how to concatenate (join) strings of characters together. Computer Science: Programming Explain the difference between an if-else statement and an if statement and how you have used them in your program. Computer Science: Programming Explain what the modulo operator does in your program. Computer Science: Programming Challenge Solutions Show Scratch solution
5.1	Detect parity error in any number of rows (after all the rows are entered) Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain how to concatenate (join) strings of characters together. Computer Science: Programming Identify when to use a list to store a set of data. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution
6.1	Detect parity error in rows and columns (any length) Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain how to concatenate (join) strings of characters together. Computer Science: Programming Identify when to use a list to store a set of data. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution